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差分前置放大器

performance
the model 7000 and 7008 low noise differential preamplifiers provide a high gain amplification to 1mhz with an ac output derived from a very low noise fet instrumentation amplifier. each model  has fixed gain settings of x1 (0db), x10 (20db), x100 (40db) and x1000 (60db) over a selectable bandwidths of 100hz, 1khz (hp), 3khz, 30khz, 100khz and 1mhz (7000 model only). noise referred to input is 7nv√hz and common mode rejection is >100db at 1khz. momentary pushbutton switches are provided that control coupling, bandwidth, gain and channel on/off selections. bnc connectors are provided for single-ended and differential input, ac output, and dc output (optional) connections.

the model 7008 eight channel low noise differential preamplifier offers up to 8 channels of high gain pre-amplification with usb or lan remote control.

applications
the model 7000 and 7008 are very useful for troubleshooting sources of noise, amplifiers, power supplies and various other electronic circuits. they are an excellent tool as a preamp for amplifying low level input signals to oscilloscopes or other devices.
 

model

model 7000
low noise differential preamplifier
http://www.krohn-hite.com/htm/preamp/images/7000pic2.jpg

model 7008
8 channel
low noise differential preamplifier
http://www.krohn-hite.com/htm/preamp/images/7008%20front-1.jpg

 

 

number of channels

1

8

frequency range

dc to 1mhz

dc to 1mhz

max. input volts

±10v peak

±10v peak

max. output volts

±10v peak

±10v peak

gain

x1, x10, x100, x1000

x1, x10, x100, x1000

low-pass filters

100hz, 3khz, 30khz, 100khz, 1mhz (off)

100khz

high-pass filter

1khz

none

rms-to-dc converter

optional

none

remote control

none

optional usb/lan

data sheet

data sheet

data sheet

manual

operating

operating

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